non pico high current clamp

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Knoxtech
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non pico high current clamp

Post by Knoxtech » Wed Feb 15, 2017 4:11 am

I have a pico 4425 and I also have a fluke i1010 high current clamp . I was wondering if any one knew which probe setting to use on the scope to have the proper conversion take place.Thank you for any help

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PicoKev
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Re: non pico high current clamp

Post by PicoKev » Wed Feb 15, 2017 10:34 am

The probe settings in the Picoscope Automotive software are are specific to the Pico range of current clamps.

However I see from a basic google search that the Fluke clamp has a conversion rate of (1 mV = 1 A.) so simply gauge the measuring range you expect the component you are testing will output and select a voltage scale to suit.

As one volt of output from the clamp will equal 1000 Amps; as you can see it will not have to be a large scale, but as always go with a larger scale if you are not sure and either repeat the test at a more appropriate scale, or simply use the amazingly powerful Pico Zoom feature to see into the detail of the waveform.

Many people do not bother with pre-sets as they know their equipment and what to expect so the voltage scaling is quicker and easier.

Obviously the fluke is a high current relatively "course" measuring instrument and will obviously be fine for starter draw etc. but I would be interested to see some examples of captures you make for lower current components. please post some examples here. 8) :)

As an example the Pico TA234 (my side arm of choice!) outputs 100mV / Amp
and the TA018 outputs mV/10 mA (100 mV = 1 A) at the 20Amp scale

Martyn
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Re: non pico high current clamp

Post by Martyn » Wed Feb 15, 2017 11:47 am

Tools->CustomProbes and create a New Probe using the equation for your clamp, 1 mV = 1 A if that is the correct one, and you will have a shiny new preset specifically for this device.
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Fat Freddy
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Re: non pico high current clamp

Post by Fat Freddy » Wed Feb 15, 2017 12:28 pm

Martyn wrote:Tools->CustomProbes and create a New Probe using the equation for your clamp, 1 mV = 1 A if that is the correct one, and you will have a shiny new preset specifically for this device.

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Fat Freddy
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Re: non pico high current clamp

Post by Fat Freddy » Wed Feb 15, 2017 12:31 pm

Isn't the Pico 600 clamp (TA019) and that fluke both the same - 1mv = 1A ? Just use the preset already there?

FF

Knoxtech
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Re: non pico high current clamp

Post by Knoxtech » Wed Feb 15, 2017 1:54 pm

Fat Freddy wrote:Isn't the Pico 600 clamp (TA019) and that fluke both the same - 1mv = 1A ? Just use the preset already there?

FF


That was I was thinking but could not find the specific documentation to support the thought. Thanks for the input

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